﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>调试递归</title>
    <style>
        * { margin: 0; padding: 0;}
        .loadEffect{
            width: 100px;
            height: 100px;
            position: relative;
            margin: 0 auto;
            margin-top:100px;
        }
        .loadEffect span{
            display: inline-block;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #4a8df0;
            position: absolute;
            animation: load 1.04s ease infinite;
        }
        @keyframes load{
            0%{
                opacity: 1;
            }
            100%{
                opacity: 0.2;
            }
        }
        .loadEffect span:nth-child(1){
            left: 0;
            top: 50%;
            margin-top:-8px;
            animation-delay:0.13s;
        }
        .loadEffect span:nth-child(2){
            left: 14px;
            top: 14px;
            animation-delay:0.26s;
        }
        .loadEffect span:nth-child(3){
            left: 50%;
            top: 0;
            margin-left: -8px;
            animation-delay:0.39s;
        }
        .loadEffect span:nth-child(4){
            top: 14px;
            right:14px;
            animation-delay:0.52s;
        }
        .loadEffect span:nth-child(5){
            right: 0;
            top: 50%;
            margin-top:-8px;
            animation-delay:0.65s;
        }
        .loadEffect span:nth-child(6){
            right: 14px;
            bottom:14px;
            animation-delay:0.78s;
        }
        .loadEffect span:nth-child(7){
            bottom: 0;
            left: 50%;
            margin-left: -8px;
            animation-delay:0.91s;
        }
        .loadEffect span:nth-child(8){
            bottom: 14px;
            left: 14px;
            animation-delay:1.04s;
        }
    </style>
</head>
<body>
    <div class="loadEffect">
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
    </div>
</body>
</html>